top of page

About Us

Raising Bison is Our Passion

big guy.jpg

Our Story

For over 30 years, Pat and Rebecca Ries have been raising bison. Tucked into the rolling hills of Mount Calvary, Wisconsin, their farm sprawls across over 100 acres of lush green grass. Pat (formally trained as a Civil Engineer) and Rebecca (an Agronomist) combined their unique skillset to begin raising the animals in the early 1990s. They are passionate about restoring bison populations to what they once were through their practice of sustainable farming and spreading the word about this amazing animal. 

​

In the summer of 2021, Pat and Rebecca's granddaughter - Isabella Tondi - graduated from UW-Madison (where she studied Agronomy) and moved to Nebraska to work on a bison ranch. In the fall of 2023, Isabella moved to Fond du Lac to begin working with her grandparents.

​

Along with farming, both Pat and Isabella are on the Board of Directors for the Wisconsin Bison Producers Association. Learn more about the association here.

Meet The Team

Pat and Rebecca.jpg
Contact Us!

920-923-2028

Visit the Farm:

Ries's Tallgrass

W2749 Golf Course Road

Mount Calvary, WI 53057

Find Us on Facebook
  • Facebook

Stay up-to-date on upcoming events, changes in stock, and see recent photos

bottom of page